Light dark matter - Wikipedia
Light dark matter, in astronomy and cosmology, are dark matter weakly interacting massive particles (WIMPS) candidates with masses less than 1 GeV. [1] These particles are heavier than warm dark matter and hot dark matter, but are lighter than the traditional forms of cold dark matter, such as Massive Compact Halo Objects (MACHOs).
[1709.07882] Light Dark Matter: Models and Constraints - arXiv.org
2017年9月22日 · We study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmological constraints.
Dark Energy and Dark Matter | Center for Astrophysics | Harvard ...
All the atoms and light in the universe together make up less than five percent of the total contents of the cosmos. The rest is composed of dark matter and dark energy, which are invisible but dominate the structure and evolution of the universe.
Dark matter - Wikipedia
In astronomy, dark matter is a hypothetical form of matter that does not interact with light or other electromagnetic radiation. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be observed.
GALILEO: Scientists propose a new method to search for light dark matter
2024年3月15日 · In the new PRL study, researchers from the University of Maryland and Johns Hopkins University have proposed Galactic Axion Laser Interferometer Leveraging Electro-Optics or GALILEO, a...
The Light Dark Matter eXperiment (LDMX) is an electron-beam fixed-target missing-momentum experiment that realizes this approach and provides unique sensitivity to light dark matter in the sub-GeV range.
The light and fuzzy side of dark matter - Max Planck Society
2020年12月1日 · Dark matter, which makes up over 80% of the mass in the Universe, does not absorb or emit light, interacting with light and normal (baryonic) matter only through its gravitational pull. The nature of dark matter is one of the …
Light dark matter: A common solution to the lithium and H0 …
2021年1月10日 · These results rely on the existence of very light dark matter with sub-keV mass, with a small fraction of them being produced in association with photons. In other words, the production of sub-keV dark matter seems to provide a possible solution to current problems in the standard cosmology.
Constraints on light dark matter | Nature Reviews Physics
2019年12月10日 · Light-mass dark matter particles would have a tiny effect, but could still be detected with a combination of the S1 and S2 signals. However, this is not easy because the radioactive background in...
New realisation of light thermal dark matter with enhanced ... - ADS
Light dark matter (DM) with mass around the GeV scale faces weaker bounds from direct detection experiments. If DM couples strongly to a light mediator, it is possible to have observable direct detection rate. However, this also leads to a thermally under-abundant DM relic due to efficient annihilation into light mediators. We propose a novel scenario where a first-order phase transition (FOPT ...